Barrel-heater



(No Mode.)

M. c. DANN.

BARREL HEATER.

N0. 288,213.' Panama Nw.V 13, 188,3.

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Nrrlnn STATES Mancuso. DANN, or MINNEAPOLIS, MINNESOTA..

.BARREL-HEATER.

SPECIFICATION forming part of Letters Patent No. 288,213, dated November 13, 1883.

l Appneaun mea July 30,1883. (No moana To LZ whom it 'may concern:

Be itknownthat LMAnoUs CoLnGA'rE DANN, a citizen of the United States, and a resident of Minneapolis, in the county of Hennepin,

in the State of Minnesota, have invented certain new and useful Improvements in Processes of and Apparatus for Treating Double- Stave Barrels,4 ot' which the following specification is a full, clear, and kexact description, reference being also had to the accompanying drawings, in which Figure l is a sectional side elevation, and Fig. 2 is a sectional plan view, of the hot-air chamber or kiln composing the apparatus. Fig; 3 is a longitudinalv sectional elevation,

and Fig. i is a cross-sectional view enlarged,

will spring back to their former shape when y the trsshoops are Wzuglnliamn.i

To thoroughly heat both sets of stares, and

cause both sets to retain their curved form,A

is the object of this invention, which consists in applying the heat to the outside of thedbarrels, as well as to the inside, substantially in the manner hereinafter speciiied.

The steamlheated chamber may be formed large enough to receive a number of barrels at once, as shown in the drawings, which show the preferable manner of forming the chamber. l

da represents the walls, formed of any suitable non` conducting material, to prevent Waste of heat by radiation, and supplied with a system of steam or hot-air pipes, B, arranged substantially as hereinafter speciied.

C G2 are doors in the ends of the chamber, and Dis au inclined track, upon which the barrels E will be rolled and passed out through the ends of the chamber.

By closing the door C2 and allowing barrels Venough to ll the chamber to run down the track, and then closing the door C until the barrels are sufficiently heated, and then opening the door C2, the heated barrels will run out and`leave the kiln ready to receive another supply through the door C. By this means no time is lost in handling the barrels. The trus'sed barrels E E being without heads, and consequently open at both ends, allow the radiation oi' the heat andV the circulation of heated air equally inside and outside thereof.

The heatingepipes B B are arranged, as shown, with alternate' turns up and down along the sides of the chamber, reaching above and belowr the barrels, and at such distances apart between the turns that at least one turn will be opposite to the end of each barrel, thus insuring an equal heating of all the bari rels at both ends, and both inside and outside. A temperature of 1200 Fahrenheit is sufficient to produce the required effect upon the barrels. Y

,Much trouble has been heretofore experienced in manufacturing double-stavebarrels, by reason of the inability to cause the outer staves to retain their curved form; but by this simple process all such objections are avoided. The outer set of staves of barrels treated by the ordinary method are constantly pressing outward attheir ends, thereby straining and frequently loosening or breaking the hoops, orso spreading the staves as to cause theheads to become loosened or drop out, .but by my process the outer stares retain their shape equally as Well as the inner ones.

The tracks may be replaced by endless chains or other means of conveying the barrels through the hot-air chamber. The hot-air chamber maybe arranged so that the barrels may be received and discharged at the same end.l

Having described my invention and set forth its merits, what I claim is- 1. The method oi' drying double-stave barrels, which consists in placing the trussed staves, before the insertion of the heads, in a close chamber and there subjecting them to heat which can freely circulate through and about them, substantially as specified 2. An apparatus for treating` double-stave In testimony whereof I have hereunto set barrels, composed of a close heatngohamber, my hand in'presenoe of two subscribing Wit- 1o A, adaptedV to receive the trussed barrels on nesses. suitable tracks or supports, D D, and provided 5 Withheztting-pipesBB,arranged on each side, MARCUS COLEGATE DANN' Y with one or' more turns opposite to each end Vit-nesses: y of each barrel contained therein, substantially C. N. VOODWARD, as and for the purpose herein specified. LOUIS FEESER, Sr. 

